Smart HD Tachograph "Multi-function rearview mirror integrated" This product combines the functions of a rearview mirror and a drive recorder. In Chinese, it is written as "高清行车记录仪" which means "high-definition driving recorder." The digital room mirror is a type of smart mirror that ensures a clear view of the rear, regardless of passengers or luggage in the back seats. * Although it appears to be new and unused, the power has not been tested. The presence or absence of missing items is also unknown, but those who are knowledgeable, please consider.